1. DESCRIPTION
6641 Polyester Film/Polyester Fiber non-woven Fabric composite (F-DMD) is made from one layer of high melting point film and two layers of hot rolling polyester fiber non-woven fabric. The three layers of flexible insulation are bonded by class F adhesive glue.
2. FEATURES
Thermal class F (155°C)
Excellent dielectric properties and mechanical tensile strength
Excellent absorption of impregnating and trickle resins
3. APPLICATIONS
Used as primary insulation for Class F applications in the electrical industry, in particular as slot insulation, phase barrier and interturn insulation for motors and transformers.
4. TECHNICAL PARAMETER
|
Item |
Unit |
Normal value |
|||||||||
|
Normal thickness |
mm |
0.15 |
0.18 |
0.20 |
0.23 |
0.25 |
0.30 |
0.35 |
0.40 |
|
|
|
Thickness tolerance |
mm |
±0.020 |
±0.025 |
±0.030 |
±0.030 |
±0.030 |
±0.035 |
±0.040 |
±0.040 |
|
|
|
Density |
g/m2 |
150±22 |
190±28 |
210±32 |
240±36 |
260±39 |
310±46 |
390±58 |
440±66 |
|
|
|
Tensile strength |
MD |
N/10mm |
≥80 |
≥100 |
≥120 |
≥130 |
≥150 |
≥170 |
≥200 |
≥300 |
|
|
TD |
≥80 |
≥90 |
≥105 |
≥115 |
≥130 |
≥150 |
≥180 |
≥220 |
|
||
|
Breakdown voltage |
At room temp. |
kv |
≥7.0 ≥6.0 |
≥8.0 ≥7.0 |
≥9.0 ≥8.0 |
≥10.0 ≥9.0 |
≥11.0 ≥10.0 |
≥13.0 ≥12.0 |
≥15.0 ≥14.0 |
≥18.0≥17.0 |
|
|
155±2℃ |
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